From 3038aa67391efc25b35f26bd323babf4474ad0e2 Mon Sep 17 00:00:00 2001
From: CLCK0622 <zhongyi070622@163.com>
Date: Fri, 23 Oct 2026 11:37:10 -0500
Subject: [PATCH] Fix const compilation without detailed exceptions

---
 fastjsonschema/generator.py |  5 ++-
 tests/test_const.py         | 74 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 76 insertions(+), 3 deletions(-)

diff --git a/fastjsonschema/generator.py b/fastjsonschema/generator.py
index 951edda..317e85a 100644
--- a/fastjsonschema/generator.py
+++ b/fastjsonschema/generator.py
@@ -304,10 +304,11 @@ def exc(self, msg, *args, append_to_msg=None, rule=None):
         Short-cut for creating raising exception in the code.
         """
         if not self._detailed_exceptions:
+            definition_rule = self.e(self._definition.get(rule) if isinstance(self._definition, dict) else None)
             if self._fast_fail:
-                self.l('raise JsonSchemaValueException("'+msg+'")', *args)
+                self.l('raise JsonSchemaValueException("'+msg+'")', *args, definition_rule=definition_rule)
             else:
-                self.l('errors.append(JsonSchemaValueException("'+msg+'"))', *args)
+                self.l('errors.append(JsonSchemaValueException("'+msg+'"))', *args, definition_rule=definition_rule)
             return
 
         arg = '"'+msg+'"'
diff --git a/tests/test_const.py b/tests/test_const.py
index 903cf6b..d62c771 100644
--- a/tests/test_const.py
+++ b/tests/test_const.py
@@ -1,6 +1,8 @@
 import pytest
 
-from fastjsonschema import JsonSchemaValueException
+from fastjsonschema import (
+    JsonSchemaValueException, JsonSchemaValuesException, compile, compile_to_code,
+)
 
 
 @pytest.mark.parametrize('value, testError', (
@@ -22,3 +24,73 @@ def test_const(asserter, value, testError):
         '$schema': 'http://json-schema.org/draft-06/schema',
         'const': const,
     }, value, expected)
+
+
+@pytest.mark.parametrize('draft', ('06', '07'))
+@pytest.mark.parametrize('detailed_exceptions', (True, False))
+@pytest.mark.parametrize('fast_fail', (True, False))
+@pytest.mark.parametrize('matches', (True, False))
+@pytest.mark.parametrize('const, invalid, message_value', (
+    ('foo', 'bar', 'foo'),
+    ('\'"', 'other', '\'"'),
+    (42, 43, '42'),
+    (1.5, 1.6, '1.5'),
+    (True, False, 'True'),
+    (None, 0, 'None'),
+    ([1, 'x'], [2, 'x'], "[1, 'x']"),
+    ({'key': 'value'}, {'key': 'other'}, "{'key': 'value'}"),
+))
+def test_const_exception_options(draft, detailed_exceptions, fast_fail, matches,
+                                 const, invalid, message_value):
+    validator = compile({
+        '$schema': 'http://json-schema.org/draft-{}/schema#'.format(draft),
+        'const': const,
+    }, detailed_exceptions=detailed_exceptions, fast_fail=fast_fail)
+
+    if matches:
+        assert validator(const) is const
+    else:
+        exception = JsonSchemaValueException if fast_fail else JsonSchemaValuesException
+        with pytest.raises(exception) as exc:
+            validator(invalid)
+        expected_message = 'data must be same as const definition: ' + message_value
+        assert exc.value.message == expected_message
+        if not fast_fail:
+            assert len(exc.value.errors) == 1
+            assert isinstance(exc.value.errors[0], JsonSchemaValueException)
+            assert exc.value.errors[0].message == expected_message
+
+
+@pytest.mark.parametrize('detailed_exceptions', (True, False))
+@pytest.mark.parametrize('fast_fail', (True, False))
+def test_const_compile_to_code_exception_options(detailed_exceptions, fast_fail):
+    code = compile_to_code({'const': 1}, detailed_exceptions=detailed_exceptions,
+                           fast_fail=fast_fail)
+    scope = {}
+    exec(code, scope)
+
+    assert scope['validate'](1) == 1
+    exception = JsonSchemaValueException if fast_fail else JsonSchemaValuesException
+    with pytest.raises(exception) as exc:
+        scope['validate'](2)
+    assert exc.value.message == 'data must be same as const definition: 1'
+
+
+@pytest.mark.parametrize('fast_fail', (True, False))
+@pytest.mark.parametrize('to_code', (True, False))
+def test_compact_exceptions_ignore_refs_in_examples(fast_fail, to_code):
+    schema = {
+        '$schema': 'http://json-schema.org/draft-07/schema#',
+        'type': 'object',
+        'examples': [{'$ref': '#/missing'}],
+    }
+    if to_code:
+        code = compile_to_code(schema, detailed_exceptions=False, fast_fail=fast_fail)
+        scope = {}
+        exec(code, scope)
+        validator = scope['validate']
+    else:
+        validator = compile(schema, detailed_exceptions=False, fast_fail=fast_fail)
+
+    value = {'hello': 'world'}
+    assert validator(value) is value